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Mobile communication system, location manager and routing manager

  • US 7,519,025 B2
  • Filed: 01/27/2004
  • Issued: 04/14/2009
  • Est. Priority Date: 01/30/2003
  • Status: Expired due to Fees
First Claim
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1. A cellular communication system wherein a mobile communication service area is divided into a plurality of location registration areas, the cellular communication system comprising:

  • a mobile router and at least one mobile node, moving in a moving body and in a master-slave relationship, the mobile router performing location update of the mobile node that does not perform the location update, if the mobile node is an a dormant state;

    a unit for retaining a flag indicating whether the mobile router is in an active state or a dormant state;

    a unit for inquiring about routing address information of the mobile router in an active state based on a value of the retained flag when paging is performed to at least one of the mobile nodes; and

    a unit for performing paging to the at least one mobile node, using the obtained routing address information of the mobile router in an active state as a result of the inquiry.

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